Oh, what a happy little number we have here! When we round 45419 to the nearest 10000, we see that it's closest to 50000. Just imagine that number as a beautiful mountain in your painting, standing tall and proud. Remember, there are no mistakes in rounding, just happy little approximations.
45000
45420
the answer is 10000
45420
930000 =-)
10000
It is 8000000
10000
8320000
10000
10000
Any number from 5000 to 14999 would round to 10000.